Propane selective carbon adsorbents from phenolic resin precursor

Novel carbon adsorbents for propane/propylene separation, with an unprecedented adsorption selectivity to propane – the minority component were prepared from a phenolic resin precursor. The preparation conditions of molecular sieve adsorbents, such as pre-treatment phosphoric acid, carbonization and post-treatment propylene, carefully investigated concerning their role on separation performance. best performing sample, MFF_8, was characterized by SEM, FTIR small-angle X-ray scattering (SAXS). It concluded that acid critical obtaining performance ratio ca. 2 at 1 bar 25 °C; this sample carbonized 1100 °C post-treated propylene during 12 days. SAXS analysis indicates rod-shaped pores MFF_8 bimodal size distribution averages 0.4 nm 3.7 nm, HRTEM images show network earthworm micropores. adsorbent assigned shape rigidity compared worming through constriction ultra-micropores network. To knowledge authors, is first time (CMS) reported. This new family CMS great potential equilibrium kinetic based separations adsorbates displaying different performances.